Walmart sells 16oz Great Grains Cereal for $3.28. Buy two for $6.56. Use the $1 off two coupon above and pay $5.56. Submit for $.80 Cash Back from Ibotta ($.40 twice) then submit for $.50 Cash back from Hopster Rebates. Final price $4.26 for both or $2.13 each.
Kroger sells 16oz Great Grains Cereal for $3.77. $2.62 after the coupon and rebates when you buy two.